libcarla: Fix compile error with gcc >=13

[wentasah]

Description

The error was:

LibCarla/source/carla/client/FileTransfer.h:31:57: error: 'uint8_t' was not declared in this scope
   31 |     static bool WriteFile(std::string path, std::vector<uint8_t> content);
      |                                                         ^~~~~~~

Checklist:

• Your branch is up-to-date with the dev branch and tested with latest changes
• Extended the README / documentation, if necessary
• Code compiles correctly
• All tests passing with make check (only Linux)
• If relevant, update CHANGELOG.md with your changes

Where has this been tested?

• Platform(s): Linux
• Python version(s): not relevant
• Unreal Engine version(s): not relevant

Possible Drawbacks

None :-)

[update-docs]

Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would update our CHANGELOG.md based on your changes.